metals design handbook disclaimer
TRANSCRIPT
DOE-HTGR-889 06 Revision 0
METALS DESIGN HANDBOOK DISCLAIMER
This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsi- bility for the accuracj, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Refer- ence herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, rccom- mendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.
AUTHORSICO NTRACTORS
GENERAL ATOMICS
ISSUED BY GENERAL ATOMICS FOR THE DEPARTMENT OF ENERGY
CONTRACT DE-ACO3-88SF17367
GENERAL ATOMICS
GA/DOE-130-89 Project 6300
February 21, 1989 WBS 1603
Mr. A. C. Millunzi U.S. Department of Energy 19901 Germantown Road Germantown, MD 20874
Subject: Metals Design Handbook
Dear Andy :
Enclosed f o r your use/information is DOE-HTGR-88106, Rev. 0, "Metals Design Handbook". Copies have already been sent to C-E and ORNL.
Very truly yours,
lett, Manager MHTGR Project Operations
Enclosure
cc: E. Arbtin, EG&G L. D. Mears, GCRA 8. d. Mills, PDCO S. L. Wookey, PDCO
* i
10955 JOHN JAY HOPKINS DRIVE, SAN DIEGO, CA 92121-1194 PO. BOX 85608, SAN DIEGO, CA 92138-5608 (619) 455-3000
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. A 798 (REV. 3/84 bOCUMENT TIIANSMITTAL
I PAGE .-,OF 1 1 0: 1 A. C. Millunzi U.S . Dept. of Energy' 19901 Germantown Rd. Germantown, MD 20874
cc: L. D. Mears, GCRA R. R. Mills, PDCO S. L. Wookey, DOE-SAN E. Arbtin, EG&G
February 21, 1989 DATE:
IPROJECT NO. 6300
UBJECT:
DOCUMENT NUMREn
DOE-HTGR-88106
DOCUMENT TITLE/DESCRIPTION
Metals Design Handbook
ITRANSMTR: G. Bramblett DATE: 2/21
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METALS DESIGN HANDBOOK
Issued By: General Atomics PO. Box 85608
San Diego, California 92138-5608
DOE Contract No. DE-AC03-88SF17367
GA Project 6300
JULY 1988
DOE-HTGR-88106 Revision 0 909596/0
ISSUE SUMMARY
APPROVAL LEVEL T LE n R & D 0 D V & S 181 DESIGN METALS DESIGN HANDBOOK
SCIPLINE SYSTEM DOC. TYPE PROJECT DOCUMENT NO. ISSUE NO./LTR.
JALITY ASSU RANCE LEVEL ISAFETY CLASS! Fl CAT1 ON ISEISMIC CATEGORY 0 01 MAN 6300 m4TGR-88106 * 0
I ELECTRiCAL CLASSIFICATION
7
SUE
F 0
- INTI
N/A I N/A I N/A I APPROVAL
PREPARED ' FUNDING APPLICABLE PROJECT PROJECT
DATE By ENGINEERING QA
i "See List of Effective Pages. i
N/A
ISSUE DESCRIPTION/
CWBS NO.
Init ial Issue WBS 7016031201 909 59 610 Draft
NEXT INDENTURED 00 CU MENTS
DOE-HTGR-86004 (908397)
Page Number
i through v f i i 1-1 through 1-8 2-1 through 2-2 3-1 through 3-33 4- 1 through 4- 16 5-1 through 5-9 6-1 through 6-10 7-1 through 7-8
Total Pages
LIST OF EFFECTIVE PAGES
Page Count
8 8
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10 8 -
94
iii
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Revis ion
DOE-HTGR-88106lRev. 0
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CONTENTS
1 .
2 .
3 .
INTRODUCTION . . 1.1. Objective ....................... 1.2. Scope ......................... 1.3. Applicability ..................... 1.4. Definition of Symbols and Acronyms . . . . . . . . . . . 1.5. References . . . . . . . . . . . . . . . . . . . . . . . RESPONSIBILITY AND AUTHORITY . 2.1. Responsibility . . . . . . . . . . . . . . . . . . . . . 2.2. Quality Assurance . . . . . . . . . . . . . . . . . . . 2.3. Change Control . . . . . . . . . . . . . . . . . . . . . HIGH NICKEL ALLOY. ALLOY 8OOH . . 3.1.
3-20
3.3.
3.4.
3.5-
3.6.
3.7.
3.8.
3.9.
1- 1
1-1
1-2
1-3
1-3
1-4
2- 1
2-1
2-1
2-1
3- 1
Product Forms and Applicable Specifications . . . . . . 3-1
Time-Independent Mechanical Pzoperties . . . . . . . . . 3-1 Time-Dependent Mechanical Properties . . . . . . . . . . 3-1
FatigueLife . . . . . . . . . . . . . . . . . . . . . . 3-4
Thermal Properties . . . . . . . . . . . . . . . . . . . 3-5
Additional Material Properties . . . . . . . . . . . . . 3-5 Effects of Primary Coolant Chemistry and Temperature . . 3-5
3.7.1. Time-Independent Mechanical Properties . . . . . 3-6
3.7.2. Time-Dependent Mechanical Properties . . . . . . . 3-6 3.7.3. Fatigue Life . . . . . . . . . . . . . . . . . . 3-6 3.7.4, Thermal Properties . . . . . . . . . . . . . . . 3-7
3.7.5. Additional Material Properties . . . . . . . . . 3-7
Effects of Irradiation . . . . . . . . . . . . . . . . . . 3-7 3.8.1. Time-Independent Mechanical Properties . . . . . 3-7
3.8.2. Time-Dependent Mechanical Properties . . . . . . 3-8
3-8.3. Fatigue Life . . . . . . . . . . . . . . . . . . 3-8
3.8.4. Thermal Properties . . . . . . . . . . . . . . . 3-9
3.8.5. Additional Material Properties . . . . . . . . . 3-9
References . . . . . . . . . . . . . . . . . . . . . . . 3-9
iv DOE.HTGR.88106/Rev . 0
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4 . LOW ALLOY STEEL. 2-1/4 Cr . 1 Mo . . . . . . . . . . . . . 4.1. Product Forms and Applicable Specifications . . . . 4.2. Time-Independent Mechanical Properties . . . . . . . 4 . 3 . Time-Dependent Mechanical Properties . . . . . . . . 4.4. Fatigue Life .................... 4.5. Thermal Properties . . . . . . . . . . . . . . . . . 4.6. Additional Material Properties . . . . . . . . . . . 4.7. Effect of Primary Coolant Chemistry and Temperatures
4.8. Effects of Irradiation . . . . . . . . . . . . . . . 4.9. References ..................... 1 5 C r - 2 T i ) ...................... 5.1. Applicable Specifications . . . . . . . . . . . . . 5.2. Time-Independent Mechanical Properties . . . . . . . 5.3. Time-Dependent Mechanical Properties . . . . . . . . 5.4. Fatigue L i f e . . . . . . . . . . . . . . . . . . . . 5.5. Thermal Properties . . . . . . . . . . . . . . . . . 5.6.
5 . THREADED FASTENER MATERIAL SA-638 GRADE 660 (26 Ni .
Effect of Primary Coolant Chemistry and Temperature 5.7. Effect of Irradiation . . . . . . . . . 5.8. References . . . . . . . . . . . . . . .
6 . BOLTING MATERIAL SA-193 GRADE B7 (1 Cr . 2 Mo) 6.1. Applicable Specifications . . . . . . . 6.2. Time-Independent Mechanical Properties
6.3. Time-Dependent Mechanical Properties . . 6.4. Fatigue Life . . . . . . . . . . . . . . 6.5. Thermal Properties . . . . . . . . . . . 6.6.
6.7. Effect of Irradiation . . . . . . . . . . . . . . . 6.8. References .....................
Effect of Primary Coolant Chemistry and Temperature
7 BOLTING MATERIAL SA-453 GRADE 660 (26 Hi . 15 Cr . 2 Ti) 7.1. Applicable Specifications . . . . . . . . . . . . . 7.2. Time-Independent Mechanical Properties . . . . . . . 7.3, Time-Dependent Mechanical Properties . . . . . . . . 7 .4 . Fatigue Life .................... 7.5. Thermal Properties . . . . . . . . . . . . . . . . .
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4-1
4-1
4-1 4-1
4-1
4-2
4-2
4-2
4-2
4-2
5-1
5-1
5-1
5-1
5-2
5-2
5-2
5-2
5-2
6-1
6-1
6-1
6-1
6-1
6-1
6-2
6-2
6-2
7-1
7-1
7-1
7-1
7-1
7-1
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7.6. Effect of Primary Coolant Chemistry and Temperature . . 7-2
7.7. Effect of I r r ad ia t ion . . . . . . . . . . . . . . . . . 7-2 7.8. References . . . . . . . . . . . . . . . . . . . . . . . 7-2
FIGURES
3.1 . 3-20
3-3-
3.4,
3-5 . 3-6
3.7 . 3-8
3.9 . 3.10 . 3.11
4.1
4-2
Alloy 800H . Poisson's r a t i o (Y) . . . . . . . . . . . . . 3-23 Alloy 8008 . t yp ica l rupture s t rength . . . . . . . . . . . 3-24 Alloy 800H . minimum st ress- to-rupture s t rength . . . . . . 3-25 Alloy 800H . stress-to-rupture s t rength given i n N-47 . . . 3.26, AllOy800H.St . . e 3-27
Al loy800H.S , t . . 0 3-28
Alloy 800H . design fa t igue s t r a i n range, er . . . . . . . 3-29 Alloy 800H . design fa t igue s t r a i n range, er (elastic ana lys i s ) . . . . . . . . . . . . . . . . . . . . . . . . . 3-30
Alloy 800H . thermal d i f f u s i v i t y . . . . . . . . . . . . . 3-31 Alloy 800H . thermal conductivity . . . . . . . . . . . . . 3-32 Alloy 800H . s p e c i f i c heat (Cp ) . . . . . . . . . . . . . . 3-33 2-1/4 C r . lMo . design fa t igue curves f o r m e t a l temperatures not exceeding 700'F . . . . . . . . . . . . . 4-13 2-1/4 Cr . 1 Mo . thermal conductivity . . . . . . . . . . 4-14
< -
4.3 . 2-114 Cr . 1 Mo . thermal d i f f u s i v i t y . . . . . . . . . . . 4-15 4.4 . 2-1/4 Cr . 1 Mo . s p e c i f i c heat (Cp) . . . . . . . . . . . . 4-16 6.1 . Bolting SA-193 Grade B7 . stress in t ens i ty (h) . . . . . . 6-7
6.2 . Bolting SA-193 Grade B7 . thermal conductivity . . . . . . 6-8 Bolting SA-193 Grade B7 . thermal d i f f u s i v i t y . . . . . . . 6-9
expansion, mean and instantaneous . . . . . . . . . . . . . 6-10
6.3 . 6.4 . Bolting SA-193 Grade B7 . coef f ic ien t of thermal
1.1 . 1.2 . 1.3 . ASME code limits and requirements . . . . . . . . . . . . . 1-7 1.4 . Nomenclature and acronyms . . . . . . . . . . . . . . . . . 1-8
Metallic components of t he reactor system and hot duct assembly and t h e i r materials . . . . . . . . . . . . . . . 1-5
Summaq of s t r u c t u r a l criteria for meta l l i c components of t h e reac tor system and hot duct assembly . . . . . . . . . 1-6
DOE.HTGR.88106/Rev . 0 v i
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TABLES (Continued)
3-1
3-20
3-3-
3.4 . 3-5 . 3-6
3.7 . 3.8 . 3-9
3.10 . 3.11.
3.12 . 4.1 . 4.2 . 4.3 . 4.4 . 4-5 . 4.6 . 4.7 . 4.8 . 4.9 .
4.10 . 5-1 . 5.2 .
Alloy 800H: properties. product forms. and specifications . . . . . . . 3-11
Alloy 800H: Chemical composition . . . . . . . . . . . . . 3-12 Alloy 800H: strength (S ). and time-independent design stress fntensity (f) ...................... 3-13 Alloy 8008: Modulus of elasticity . . . . . . . . . . . . 3-14
Hinfmum specified room temperature tensile
Tensile ultimate strength (Su). yield
Alloy 800E: St allowable stress intensity values . . . . . 3-15 Alloy 800H: bt allowable stress intensity values . . . . 3-16 Alloy 800H: Expected minimuu~ stress-to-rupture values . 3-17 Alloy 800H: Design fatigue limits . . . . . . . . . . . . 3-18 Alloy 800H: Design fatigue strain range. eT (elastic analysis) . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
Alloy 800H: Design fatigue strain range. e7 . . . . . . . 3-20 Alloy 800H:
Alloy 800H: Coefficient of thermal expansion . . . . . . . 3-22 2-114 Cr . 1 Mo: sile properties. product forms. and ASME specifications . . 4-3 2-1/4 Cr . 1Mo: chemical composition . . . . . . . . . . 4-4 2-1/4 Cr . 1 Mo Grade 22 Class 1: tensile ultimate strength (Su). yield strength (Sy). and time-independent design stress intensity (% ) . . . . . . . . . . . . . . . 4-5
2-114 Cr . 1 Mo: modulus of elasticity . . . . . . . . . . 4-6 2-114 Cr . 1 Mo: values . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7 2-1/4 Cr . 1 Mo: values .......................... 4-8
2-1/4 Cr . 1 Mo: values .......................... 4-9
2-114 Cr . 1Mo: 4-10 2-114 Cr . 1 Mo: nominal coefficients of thermal conduc- e
tivity (k) and thermal diffusivity (a) . . . . . . . . . . 4-11 2-114 Cr . 1 Ha: coefficient of thermal expansion . . . . 4-12 SA-638 Grade 660: mechanical property requirements . . . . 5-3 SA-638 Grade 660: Chemical composition . . . . . . . . . . 5-4
Nominal coefficients of thermal conductivity . . . . . . . . . . . . . . . . . . . . . . . 3-21
minimum specified room temperature ten-
S. . allowable stress intensity ht . allowable stress intensity expected minimum stress-to-rupture
design fatigue strain range. ET . . . . .
vii DOE.HTGR.88106/Rev . 0
5-3.
5-4.
5-5. 5-6.
5-7
6-1. 6-2.
6-3.
6-4
7-1.
7-2 .
7-3. 7-4.
7-5.
7-6.
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TABLES (Cont h u e d )
SA-638 Grade 660: threaded s t r u c t u r a l fas tener mater ia l . . . . . . . . . . SA-638 Grade 660: modulus of e l a s t i c i t y . . . . . . . SA-638 Grade 660: design fa t igue . . . . . . . . . . . . Nominal coef f ic ien ts of thermal conductivity (k) and thermal d i f f u s i v i t y (a) for high a l loy steel Grade 660 . . Coefficient of thermal expansion for high a l l o y s teel Grade660 . . . . . . . . . . . . . . . . . . . . . . . Bolting material SA-193 Grade B7: chemical composition . . Bolting mater ia l SA-193 Grade B7: temperature tensile propert ies and spec i f ica t ions . . . . . Bolting mater ia l SA-193 Grade B7: (Sm)values . . . . . . . . . . . . . . . . . . . . . . . . Bolting mater ia l SA-193 Grade B7: values . . * . . . . . . . . . . . . . . . . . . . . . . . . Bolting material SA-453 Grade 660: compos i t ion . . . . . . . . . . . . . . . . . . . . . . SA-453 Grade 660: mechanical property requirements . . . . SA-453 Grade 660: s t ress-rupture requirements . . . . . . Bolting mater ia l SA-453 Grade 660: i n t ens i ty values (S,) . . . . . . . . . . .. . . . . . . . Nominal coef f ic ien ts of thermal conductivity (k) and thennal d i f f u s i v i t y (a) for high a l loy steel Grade 660 . Coefficient of thermal expansion f o r high a l loy steel G r a d e 6 6 0 . . . . . . . . . . . . . . . . . . . . . . .
design stress in t ens i ty (S,) f o r
minimum spec i f ied room
design stress in t ens i ty
various property
chemical
design stress
5-5 5-6 5-7
5-8
5-9 6-3
6-4
6-5
6-6
7-3 7-4 7-5
7-6
7-7
7-8
v i i i DOE-HTGR-88106/Rev. 0
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1. INTRODUCTION
1.1. OBJECTIVE
The objectives of the Metals Design Handbook (MDH) are:
1. To provide and maintain a single source of metal properties
and material models to be used for design of Modular High-
Temperature Gas-Cooled Reactor (IBTGR) metallic internals
components, namely control rods, upper plenum elements,
metallic core support, core lateral restraint, upper plenum
shroud, hot duct, and circulator outlet shroud.
2. To provide a single source of data and material models for use
in component design, performance, and safety analyses.
3. To present properties and equations for material models in a
form which can be used directly by the designer or analyst without the need for interpretation and are compatible with
analytical methods and structural criteria used in the MHTGR project .
4. To control the properties and material models used in the
MHTGR design and analysis to proper quality assurance (QA) standards and project requirements.
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1.2. SCOPE
This report gives an approved set of material properties over a
range of environmental conditions which are sufficient to design the
metallic components in the reactor system and hot duct assembly.
Table 1-1* list these metallic components together with the reference
design material chosen for each component,
structural criteria of each metallic component taken from the component
specifications. In all cases, the criteria references the ASME B&PV Code (Refs. 1-1 through 1-5).
Table 1-2 summarizes the
The ASME-Code includes the material properties of Coded material in
Refs. 1-2, 1-4, and 1-5. The Code does not, however, include environ-
mental effects (such as irradiation, corrosion, or thermal aging), and
for some components the material maximurn allowable temperature is below that of the design and/or postulated "safety-related" accident
conditions.
Table 1-3 gives the Code limits for the portions of the Code given
in Table 1-2.
This document includes the effects of the radiation environment,
chemical impurity effects (in the primary coolant), and the effects of
thermal aging and corrosion on the metallic properties.
The design information introduced in this document includes that available from the ASME BbPV Code High-Temperature Code Cases plus mate- rial information from General Atomics (GA) and Oak Ridge National
Laboratories ( O m ) that is published.
Tables and figures are located at the end of each section. *
1-2 DOE-HTGR-88106/Rev. 0 ,
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1.3. APPLICABILITY
The reference properties presented in this document are approved by
the Component Engineering Department for use in METGR design, perfor- mance, and safety calculation.
1.4. DEFINITION OF SYMBOLS AND ACRONYMS
Table 1-4 lists the symbols and acronyms used in this report. It
is intended that the symbols correspond to those used in the ASME B&PV Code when applicable. Below is a detailed definition of S, and St.
Time-Independent Design Stress Intensity (S,)
The value of S, is based on tensile and yield strengths of the
material. The criteria employed are defined as follows.
The allowable stress intensity value (S,) for austenitic steels,
nickel-chromium-iron and nickel-iron-chromium alloys is the lowest of
the following four values:
1. One-third of the specified minimum tensile strength at room
temperature.
2. One-third of the tensile strength at operating temperature.
3.
4.
Two-thirds of the specified minimum yield strength at room
temperature.
Ninety percent (90%) of the yield strength at the operating
t g m p n ature .
1-3 DOE-HTGR-88106/Rev. 0
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Time-Dependent Design S t r e s s In t ens i ty (St)
The symbol St is used f o r t h e bas ic time and temperature-dependent St values are allowable stress in t ens i ty f o r load-controlled stresses.
the least of each of t h e th ree quant i t ies :
1. Two-thirds of t he minimum stress t o cause rupture i n time t.
2. Eighty percent (80%) of t h e minimum stress t o cause t h e onset
of t e r t i a r y creep i n time t.
3. The minimum stress t o produce 1% t o t a l s t r a i n i n time t.
1.5. REFERENCES
1-1. ASME Boiler and Pressure Vessel Code, Section III, Division 1, Subsection NG - Core Support Structures , 1986 Erdition through t h e 1987 Addenda.
1-2. ASME Boiler and Pressure Vessel Code, Nuclear Components-Code Case N-201-1, C l a s s CS Components i n Elevated Temperature Service, Section 111, Division 1, Ju ly 16, 1982.
1-3. ASME Boiler and Pressure Vessel Code, Section-111, Division 1,
Subsection NB - Class 1 Components, 1986 Edition through the 1987 Addenda.
1-4. ASME Boiler and Pressure Vessel Code, Section 111, Division 1, Appendix I, Design S t r e s s In t ens i ty Values, Allowable S t resses , Material Propert ies , and Design Fatigue Curves, 1986 Edit ion through the 1987 Addenda.
1-5. ASME Boiler and Pressure Vessel Code Case N-47-23, Class 1 Compo- nents on Elevated Temperature Service, Section 111, Division 1, February 20, 1986.
1-6. "Reactor System Design Description HTGR," DOE-HTGR-86-035, Rev. 2, Apri l 1988.
1-4 DOE-HTGR-88106/Rev. 0
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TABLE 1-1 METALLIC COMPONENTS OF THE REACTOR SYSTEM AND HOT
DUCT ASSEMBLY AND THEIR MATERIALS
Component Material ASME All0 y Specification
1. Hot duct assembly (BDA) 2. Upper plenum shroud (UPS) 3. Upper plenum elements
4. Core lateral restraint (CLR)
Core barrel/coolant channels
Boss
Seismic keyways
Seismic keyway shear pins
Thermal barrier - coverplatesp seal sheets, attachments, and studs
5. Metallic core support structure
6. Control rods 7. Bolts(a)
(MCSS)
800H
800H
800H
800H
800H
800H
800H
A2286
800H
SB-408, SB-409
SB-408, SB-409
SB-408, SB-409
SB-409
SB-564
SB-409
SA-638, Grade 660
SB-408, SB-409
2-114 Cr - 1 Mo SA-387, Grade 22, Class 1
8008 SB-408, SB-409
1 Cr - 2 Mo or SA-193, Grade B7, 25 N i - 15 C r - SA-453, Grade 660 2 Ti
(a)Used in CLR keyways, at the connection between UPS and core barrel (CLR) and in the HDA at the interface between the thermal barrier attach- ment and the hot duct pipe cylinder.
1-5 DOE-HTGR-88106/Rev. 0
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TABLE 1-2 SUMMARY OF STRUCTURAL CRITERIA FOR METALLIC COMPONENTS
OF THE REACTOR SYSTEM AND HOT DUCT ASSEMBLY
Component
ASME Code Subsection Section 111, Division 1
(a) (b)
1. Hot duct assembly -- NB(c), N-47
2. Upper plenum shroud NG NB(c), N-47
3. Upper plenum elements N-47 NB(C)
4. Core lateral restraint NG, N-47 N-201(d)
5. Metallic core support structure NG N-201
6. Control rods N-47 _- (')Code requirements per Section 3 . 2 .X. 10 of appropriate (b)This column includes additional requirement which are
(C)During service levels A and 3 the design temperatures are
design description document (Ref. 1-6).
necessary to handle temperature conditions of the component.
sufficiently low that Subsection NB can be used-. the hot duct assembly operate at temperature for which Subsec- tion NB is applicable.
port the core must meet High Temperature Code Case N-201 (for Subsection NG) .
Portions of
(d)Those portions of the core lateral restraint used to sup-
1-6 DOE-HTGR-88106/Rev. 0
TABLE 1-3 ASME CODE LIMITS AND REQUIRUEMENTS
Mechanical Permissible Property Materials High Temperature Peqmissible Materials
Component: Subsection Cr i t e r i a (MHTGR) Code Case (MHTGR )
Class 1 NB 113 Su - 213 S,, 2-114 C r - 1 Ma Grade 22 Class l ( a ) RT < T 5 700'F
Alloy 800H RT < T 5 800'F
SA-193 Grade B7 RT < T 5 800'F SA-453 Grade 660 RT < T I 800'F
w I
-4
N-47 2-114 C r -1 Mo Grade 22 Class 1 < 1200'F Alloy 800H 800'F < T < 1400'F
Core support NG Same as Class 1 2-1/4 C r - 1 Mo N-201 -- st ructures Grade 22 Class 1
RT < T 5 700'F
Alloy 800H * Alloy 800H RT < T 5 800'F 800 < T 5 1200'F ( t < 20 h)
T S llOO'F (t < 750 h) u 0 m s (a)Notet Grade 22 Class 2 is also permissible In Subsections NB and NG, but not on Code Case N-47.
? 00 a, w 0 QI \
P c 0
90959610
TABLE 1-4 NOMENCLATURE AND ACRONYMS
a ASME B&PV
cp E
GAQAM
JIC
K I C k
MCSS MDH
Nd PRPM
sa
Sul st Smt SR SRm su sY T t
tR t3 a
ET Y
r
Q
thermal diffusivity - kl (pCp) American Society of Mechanical Engineers
Boiler and Pressure Vessel
specific heat
modulus of elasticity
General Atomics Quality Assurance Manual
fracture toughness
thermal conductivity critical stress intensity
metallic core support structure Metals Design Handbook
number of design allowable cycles at a given loading condition
ProgradResource Procedures Manual
allowable amplitude of the alternating stress intensity (one- half alternating stxess intensity range) time-independent design stress intensity time-dependent design stress intensity the lessor of % or St stress-to-rupture strength minimum stress-to-rupture strength ultimate tensile strength yield strength (0.2% offset)
temperature time t he-to-rupture average time to 0.2% tertiary
coefficient of thermal expansion (CTE) design fatigue strain range
Poisson's ratio
mass density
stress
Subscript
AR as received
R rupture
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2. RESPONSIBILITY AND AUTHORITY
2.1. RESPONSIBILITY
Responsibil i ty for maintaining this document is vested in t h e Manager, Core Engineering Branch, General Atomics .
2.2. QUALITY ASSURANCE
This handbook is an GA Approval Level 5 document and shall be approved i n accordance with procedure QP-3 given i n the GA Quality Assurance Manual (GAQAM) and i n t h e engineering procedures sec t ion of
t h e GA ProgramlResource Procedures Manual (PRPM).
Material p roper t ies must be e i t h e r obtained from an approved re fer - enceable document or generated from relevant data. include t h e ASME B&PV Code and o ther nat ional ly recognized standards. Relevant da ta must be obtained under conditions which comply w i t h t h e Qual i ty Assurance Criteria of Appendix B, lOCFR50.
Approved documents
Propert ies generated from data must be obtained from either of two methods. determine design proper t ies given i n t h e ASME B&PV Code.
method relies on a stat is t ical treatment of t h e da ta t o give a 95% con- fidence that exposure t o a given environment does not degrade a selected property more than t h e spec i f ied amount.
The f i r s t method relies on techniques previously used t o The second
2.3. CHANGE CONTROL
Requests for data not nuw included in this handbook or for new analyses of da ta present ly incorporated w i l l be made t o t h e manager
2-1 DOE-HTGR-88106/Rev. 0
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of the Core Engineering Branch within the Component Engineering Depart- ment, General Atomics. Data compiled as a response to requests w i l l be approved as required by GAQAM and will be issued as required by the GA PRPM.
2-2 DOE-HTGR-88106/Rev. 0
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3. HIGH NICKEL ALLOY, ALLOY 800H
3-11. PRODUCT FORMS AND APPLICABLE SPECIFICATIONS
This product is avai lable in many forms and compositions as shown
in Tables 3-1 and 3-2, respectively,
3.2. TIME-INDEPENDENT M E C W I C A L PROPERTIES
This sec t ion includes t h e following propert ies of Alloy 800H: Sy (Table 3-3), minimum S, (Table 3-3), S, (Table 3-3), E (Table 3-4), and u (Fig. 3-1).
3.3. TIME-DEPENDENT MECHANICAL PROPERTIES
This sec t ion includes St, S,,, minimum SR, and the associated con- s t i t u t i v e creep equations f o r Alloy 800H.
The constant load creep strain-time behavior of Alloy 800H can be estimated by the following equation (Stet l ing 's model):
where T = OF + 460, E, = creep s t r a i n ( X ) , 0 = stress (hi), t = time (hours).
3-1 DOE -HTGR- 88 106 /Rev. 0
Per Ref. 3-4 for 800 S O F 1600
U1 -14,683.81
U2 = 10,109.78 U3 = -4.21621 U4 = 63,683.08 Us = -24.4598
Per Ref. 3-5 for 1600 < O F 5 2000
U1 = -12,162.6 U2 1078.49
U3 = 0.471666 U4 = 51,416.6
U5 -19.0780
Limitations :
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- -
0 S 0 I minimum expected ultimate tensile strength at temperature (minimum S, per Table 3-3).
0 I time I minimum time to 0.2% tertiary creep.
The 0 lower limits apply to the Eq. 1 form. (Log of 0 is undefined.)
The average time to rupture can be estimated from the following equation, per Ref. 3-4:
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The average stress-to-rupture strength can be estimated by solving Eq. 4 for Log SR.
Log SR = [log (tR + 3) + 17,628 - 50160.84/T] ( 5 )
where tR = time to rupture (hour), tR > 0, T = OF + 460, 800 (OF Sl500, SR = average stress-to-rupture strength ( k s i ) .
For temperatures between l 5 O O 0 and 2000°F, SR can be estimated by solving Eq. 6.
48158.12 T Log (tR + 3) = -17.0212 +
- 1237g*81) log SR 9
The average time to 0.2% tertiary (t3) can be estimated by the use of the following correlation with time rupture:
The minimum stress-to-rupture strength (Sb) can be estimated from the following equation:
For 800 5 O F I 1500 (per Ref. 3-4)
- 50160.84/T] (,&I .
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For 1500 < O F S 2000 (per Ref. 3-5)
SR, = 0.820 SR , (9)
Where SR is from Eq. 6.
The dnimum stress t o onset of 0.2% t e r t i a r y creep can be estimated f o r a given t 3 by solving Eq. 7 f o r tR = 2.612 tj1*Oo6 and subs t i t u t ing i n Eq. 8 (average by subs t i t u t ing in Eq. 5) .
The typ ica l rupture s t rength of Alloy 800H (according t o Eqs. 5 and 6 ) f o r t h e temperature range of 1200' to 2000'F are presented i n Fig. 3-2.
Figure 3-3 give the minimum stress- to-rupture s t rength S b based on Eq. 8. Figure 3-4 gives the values of S b from Ref. 3-6 (N-47). Com- parison between these shows tha t , typ ica l ly , t he values obtained from
Eq. 8 (per Ref. 3-4) give somewhat lower S b f o r a given time and t e m - perature. from Ref. 3-4 be used.*
It is recommended t h a t t he more conservative values of S b
Additional design information from Ref. 3-6 (N-47) is presented i n Figs. 3-5 and 3-6, and Tables 3-5 and 3-6.
3.4. FATIGUE LIFE
Tables 3-7, 3-8, and 3-9, and Figs. 3-7 and 3-8 give design fa t igue limits Alloy 800H. Table 3-7 is from Ref. 8 (N-201) and gives allowable stress amplitude (Sa) based on elastic analysis. Table 3-8 and Fig. 3-9 a re from Ref. 3-6 (N-47) and gives allowable s t r a i n range (e,) based on e l a s t i c analysis. By def in i t ion , Sa = +/(2E). This re la t ionship can
Mr. D. Roberts indicates t h a t he s t i l l expects t he values from * Ref. 3-6 t o be incorporated i n t o N-47.
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be used t o show t h a t the ET values i n Table 3-8 corresponded exactly t o the Sa values i n Table 3-7.
a re applicable t o both N-201 and N-47 within the temperature limits of
Therefore, t he propert ies i n both t ab le s
N-201
The design fa t igue s t r a i n range i n Table 3-9 and Fig. 3-7 is from
Ref, 3-6 (N-47) and applies t o strains computed using i n e l a s t i c analysis techniques.
3.5. THERMAL PROPERTIES
The following thermal propert ies s h a l l be w e d f o r Alloy 800H: thermal d i f fus iv i ty ( a ) (Fig. 3-9), thermal conductivity (k) (Table 3-10; Fig 3-10), and spec i f i c heat (C,) (Fig. 3-11).
3.6. ADDITIONAL MATERIAL PROPERTIES
The coef f ic ien ts of thermal expansion (Q) i n Table 3-11 s h a l l be used i n design.
3.7. EFFECTS OF P R m Y COOLANT CHEMISTRY AND TEMPERATURE
This sect ion documents the e f f e c t s of primary coolant chemistry and The primary coolant helium temperature on t he propert ies of Alloy 800H.
contains impurit ies (Ref. 3-5), which can cause corrosion i n the form of oxidation, decarburization, and carburization. A t design temperatures
above 538OC (100O0F), carbon t ransport in Alloy 800H via long-term in te rac t ion with the primary coolant helium has been shown t o be the most po ten t i a l ly s ign i f icant mode of corrosion with respect t o influenc- ing bulk mechanical propert ies such as tensile and creep propert ies . In
addition, surface oxidation along with concurrent carbon t ranspor t may s ign i f i can t ly affect surface sens i t i ve propert ies such as fa t igue , creep-fatigue, and crack growth. The bases fo r t he values of these propert ies are given i n Section 4.1.3 of Ref. 3-2.
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There is no adverse effect on the as received material properties
due to exposure at temperatures less than or equal to 1000'F.
(up to 300,000 h) exposure at temperatures between 1000° and 1400'F are
affected CIS given in the following subsections.
Long term
The following sections shall be followed in design.
3.7.1. Time-Independent Mechanical Properties
3.7.2. The-Dependent Mechanical Properties
There is no adverse effect on St and SR,,,.
Therefore,
3.7.3. Fatigue Life
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3.7.4. Thermal Propert ies
There is no adverse e f f e c t on a, k, or Cp.
3.7.5. Additional Material Propert ies
3.8. EFFECTS OF IRRADIATION
This sec t ion documents t he e f f e c t s of i r r a d i a t i o n a t t h e design l eve l of Ref. 3-2 on t h e propert ies of Alloy 800H. The bases f o r t he values of these propert ies are given in Section 4.1.3 of Ref. 3-2. confidence in these values is adequate f o r preliminary design.
The
The following allowable stresses s h a l l be used i n design.
3.8.1. Time-Independent Mechanical Properties
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3.8 .2 . Time-Dependent Mechanical Properties
For rupture times ( t R ) less than 1000 h
For tR 2 10,000 h
interpolation on log scale for 1,000 S t < 10,000 shal l be used to com- pute St and Sb.
3.8.3. Fatigue Life
For N I 1000 cycles
For N 2 105 cycles
interpolation on log scale for 103 < MlOS shal l be used to compute €7 and Sa.
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3.8.4. Thermal Properties
There is no adverse effect on a, k, or Cp.
Therefore,
3.8.5. Additional Material Properties
3.9. REFERENCES
3-1
3-2.
3-3.
3-4.
3-5.
3-6.
3-7.
"Preliminary Assessment of Structural Materials for Use at Tem-
peratures in the Range 1200' to 2000'F," GA-D15431, Rev. 2,
February 1980.
Betts, W. S. HMetals Technology Development Plan MEiTGR," DOE-
HTGR-86087, Rev. 1, March 1987.
"Status Report on Creep-Rupture Tests of 2-114 Cr - 1 Mo Steel, Alloy 800H and Hastelloy X in Simulated HTGR-SCIC Helium," DOE-HTGR-85131, Rev. 0, August 1985.
"HTGR Design Data Manual (Metals and Ceramics)," DOE-HTGR-85048,
Rev. 0, June 1985.
"MHTGR-Primary Coolant chemistry-Requirements," DOE-HTGR-88086,
Rev. 0, April 1988.
'ASME Boiler and Pressure Vessel Code Case N-47-23, Class 1 Com-
ponents on Elevated Temperature Service, Section 111, Divi-
sion 1," February 20, 1986.
'ASME Boiler and Pressure Vessel Code, Section 111, Division 1," Appendices, 1986 Edition through the 1987 Addenda.
3-9 DOE-HTGR-88106/Rev. 0
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3-8. "ASME Boiler and Pressure Vessel Code Case N-201-1," Class CS
Components on Elevated Temperature," July 16, 1982.
3-9. INCO Alloys International, Inc., "Incoloy Alloys 800 and 800HT,"
Huntington, West Virginia, dated 1986.
"Criteria for Design of Elevated Temperature Class 1 Components in Section 111, Division 1 of the ASME Boiler and Pressure Vessel Code," published by ASME in May 1976.
3-10.
3-10 DOE-HTGR-88106/Rev. 0
TABLE 3-1 ALLOY 800H: MINIMUM SPECIFIED ROOM
TEXPERAT'URE TENSILE PROPERTIES, PRODUCT FOBS, AND SPECIFICATIONS
Minimum Spec i f i ed Tensile Strengths
Ult imate 65 ksi 448 MPa Yie ld 25 k s i 172 MPa
Typical Applicable Spec i f i ca t ions (a)
ASME - Form ASTM - - Seamless condenser tubing 8163 SB-163 Seamless pipe and tubing B407 SB-407
Rod and bar 3408 SB-408
P l a t e , sheet, and s t r i p B409 SB-409
Forgings B564 SB-564
(a)UNS NO8810 des ignat ion i n s p e c i f i c a t i o n is Incoloy 800H.
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TABLE 3-2 ALLOY 800H: CHEMICAL COMPOSITION,
PERCENT BY WEIGHT
N i cu
Fe
Mn C
si S
Cr
A1
Ti
M8Ximum
Maximum
Maximum Maximum
30 to 35
0.75 Balance
1.5 0.05 to 0.10 1.0 0.015
19 t o 23
0.15 t o 0.60 - 0.15 to 0.60
Note: For Code Case N-47 usage, the following additional restrict ions apply :
A1 + Ti l o . 50% Minimum solution heat 2050'F treatment temperature
.
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TABLE 3-3 BUOY 800H: TENSILE ULTIM#LT!Z STRENGTH (S,),
AN? TIME-INDEPENDE3T INTENSITY (G)
ET 100 200 300 400
500 600
-. '650 700 750
800 850 900 950
1000
1050 1100 1150 1200 1250
1300 1350 1400 1450 1500
1550 1600 1700 1800 2000
65.0 64.0 60.5 58.4 57-0
56.0 56.0
56.0 -- --
56.0
55.5
54.6
-- --
39.6 36.0 33.0 -*
23.0
-- 16.0
9.0 5.0
11.8
25.0 24.3 22.5 21.1 20.0
19.0 18.3 17.7 17.5 17.2
17.0 16.6 16.5 16.2 16.0
15.8 15.6 . 15.s 15.3 15.1
14.7 14.5 14.0 13.5 13.0
12.0 11.2 9.0 7.0 4.0
16.7 16.7 16.7 16.7 16.7
16.7 16.5 -- 15-7 15.5
15.3 15.1 14.8 14.6 14.4
14.3 14.1 13.9
13.5 13.8
13.2 12.0 11.0 -- --
(a)For T s 1200°F. Values of Su are from Ref . 3-4. These values are lower than the ASHE code values given in Table I-3.2 of Ref. 3-7 anti Table 1-3.2 of Ref. 3-8. A t high tcmpcraturcs, values based on S, = 3 S, €or 1300 I T I 1400'F and Ref. 3-1 for T > 1400'F.
800°F, Table 1-2.2, Ref. 3-8, 800 < T 5 120OoF, Table 1-14.5, Ref- 3-6, 1200 < T
(b)Per Table 1-2.2, Ref . 3-7, RT 5 T 5
16OO0F, =ti h f . 3-1 for T > 1600'F. (C)Per Table 1-1.2 of Ref. 3-? f o r T 5
800°F, Table 1-1.2 of Ref. 3-8 fo r 800 < T I 1200°F, T a b l e 1-14.3 of Ref. 3-6 f o r 1200° < T 5 1400'F.
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TABLE 3-4 ALLOY 800H: MODULUS OF ELASTICITX
(Static) Temperature Nodulus of Elasticity
(OF) ( p s i x 10-6)
70 100 200 300 400
500 600 700 75 0 800
85 0 900 95 0
1000 1050
1100 1150 1200 1250 1300
1350 1400 1450 1500
28.5 28.4
27.4 27.8
27.1
26.6 26.4 25.9 25.7 25.4
25.1 24.8 24.5 24.2 24.1
23.8 23.5 23.2
22.7 22.9
22.2 21.9 21.7 21.2
(a)Per Table 1-14.7 of Ref. 3-6. .
3- 14 DOE-HTGR-88106fRev. 0
TABLE 3-5 ALLOY 800H: S, ALLOWABLE STRESS INTENSITY VALUES
( k s i )
Temperature (OF) 1 h 10 h 30 h 100 h 300 h 1,000 h 3,000 h 10,000 h 30,000 h 100,000 h 300,000 h
800
850
900
950
1000
1050
1100
1150
1200
1250
1300
1350
1400
20.2
20.0
19.8
19.6
19.4
19.3
19.1
18.6
18.2
17.7 16.6
14.9
12.6
20.2
20.0
19.8
19.6
19.4
19.3
19.1
18.5
17.6
16.6
14.5
11.4 9.2
20.2
20.0
19.8
19.6
19.4
19.3
19.0
18.4
17.3 15.8
12.4
9.9
8.0
20.2
20.0
19.8
19.6
19.4
19.3
18.6
18.1
16.6
13.3
10.5
8.4
6.8
20.2
20.0
19.8
19.6
19.4
19.3
18.4
17.7 14.7
11.5
9.1
744
6.0
20.2
20.0
19.8
19.6
19.3
18.9
18.0
16.3
12.5
9.8
7.9
6.4
5.2
20.2
20.0
19.8
19.6
19.1
18.7
17.8
14.0
10.9
8.6
6.9
5.6
4.6
20.2
20.0
19.8
19.5
18.9
18.4
15.7
12.0
9.4
7.5
6.0
4.9
4.0
20.2
20.0
19.8
19.3
18.6
17.4 13.6
10.5
8.2
6.6
5.3
4.3
3.5
20.2
20.0
19.7
19.2
18.5
15.3
11.7 9.1
7.2
5.8
4.6
3.7 3.0
20.2
20.0
19.6
19.1
17.0
13.4
10.3
8.0
6.4
5.1
4.1
3.3
2.6
(a) The values i n this table are from Table 1-14.4C, Ref. 3-6.
\b 0 W ul W
0 1.
TABLE 3-6 ALLOY 800H: Smt ALLOWABLE STRESS INTENSITY VALUES
h i )
Temperature (OF) 1 h 10 h 30 h 100 h 300 h 1,000 h 3,000 h 10,000 h 30,000 h 100,000 h 300,000 h
800
850
900
950
1000
1050
1100
1150
1200
1250
1300
1350
1400
15.3
15.1 14.8
14.6
14.4
14.3
14.1
13.9
13.8
13.5
13.2
12.0
11.0
15.3
15.1 14.8
14.6
14.4
14.3 14.1
13.9
13.8
13.5
13.2
11.4
9.2
15.3
15.1 14.8
14.6
14.4
14.3
14.1
13.9
13.8
13.5
12.4
9.9
8.0
15.3
15.1
14.8
14.6
14.4
14.3
14.1
13.9
13.8
13.3
10.5
8.4
6.8
15.3
15.1 14.8
14.6
14.4
14.3
14. I. 13.9
13.8
11.5
9.1
7.4
6.0
15.3
15.1
14.8
14.6
14.4
14.3
14.1
13.9
12.5
9.8
7.9
6.4
5.2
15.3
15.1
14.8
14.6
14.4
14.3
14,l
13.9
10.9
8.6
6.9
5.6
4.6
15.3
15.1
14.8
14.6
14.4
14.3
14.1
12.0
9.4
7.5
6.0
4.9
4.0
15.3
15.1
14.8
14.6
14.4
14.3
13.6'
10.5
8.2
6.6
5.3
4.3
3.5
15.3
15.1
14.8
14.6
14.4
14.3 11.7 9.1
7.2
5.8
4.6
3.7 3.0
15.3
15.1
14.8
14.6
14.4
14.3
10.3
8.0
6.4
5.1
4.1
3.3
2.6
(a)The values i n this table are from Table I-14.3C of Ref. 3-6.
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TABLE 3-7
(hi) ALLOY 800H: EXPECTED MINIHUM STRESS-TO-RUPTURE VALUES
Later - values can be obtained from Fig. 3-6.
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TABLE 3-8 ALLOY 800EI: DESIGN FATIGUE LIHITS
(Elaatic Analysis)
S,, Allowable Stress Aql i tude
(bi) Nd +
NO. of C y c l ~ 580O0F 1000°F 1200'F
101
2 x 101 4 f 101
5 x 10-1
102 2 I 102
4 x 102 5 x 10-2
103
2 103 4 x 103 5- x 104
104 2 x 104 4 x 104 5 x 104
105 2 x 105 4 x 105 5 x 10s
106
708.0 521.0 - 34s 0 261.0
201.0 _- 148.0
119.0
97.0 ..- 76.0
64.0
55.5 -- 06.3
40.8
35.9 . - - . . . -
-- 31.0
28.3
58.9 59.5 50.4 44.3 41.3 32.9 -- -- 32.9 22.5 28.0 17.6 23.8 14.2 -- -- 19.2 11.1
16.8 9.5
15.1 8.5 -- -- 13.0 7.S 11.8 ~ 6,s- 11.4 6.6 -- -- 10.7 6.2
10.1 6.0
9.9 5.7
-
-- -- 9.6 5.6
Notes : - 1.
2.
3.
E = 26 x lo6 ps i . The value for temperatures less than or equal to 800'F were obtained from Table 1-9.1 of Ref. 3-7. The velues at T > 800'F are from
Interpolarion between tabular values is pet- mfaaible b a r d upon data rsprurnt8tion by straight lines om log-log plot. Accord- ingly, for SI > S > Sj:
Tabla 1-9.2(b), R e f . 3-8.
Uhere S, S j , md Sj are values of S,; N, N j r a d N are corresponding h e r s o f cycles from aesign fatigue data. Exmmple: from the daze given in the t a b l e above, use the htrr - polation formula abwe to find the d e r of C y d e 8 for s, = 84 8t 800°F.
N 5000 [log(97/84)lll~g(9~/76) -I - 2000 (2000)
N 3430 CyCl*S.
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TABLE 3-9 A U O Y 800H: DESIGN FATIGUE STRASN RANGE, €7
(Elastic Analysis)
~
€7 Strain Range (in. / in . ) at Temperature
Nd 9 No. of Cycles 1000°F 12OOOF 1400'F
3-19 DOE-HTGR-88106/Rev. 0
101 0.00453 0.00458 0 00462 2 x 101 0.00388 0.00341 0.00295 4 x 101 0 003 18 0 00253 0.0019
102 2 x 102 4 x 102
103 2 x 103 4 x 103
104 2 104 4 104
105 2 105 4 105
106
0 00253 0.00215 0.00183
0.00148
0.00116 0.00129
0.001 0.00091 0.00088
0 00082 0 . 00078 0.000765
0 00073
0.00173 0.00135 0.00109
0 . 00085 0 00073 0 00065
0 . 00058 0. 00053 0.00051
0 00048 0.00046 0.00044
0 . 00043
0.00114 0*000791 0.000581
0.00041 1
0.00029 1 0 000341
0.00025 1
0.000214 0 00023 1
0.00020 1 0.000192 0.000186
0 000 181
values i n this table are from Table T-1430-lc of Ref. 3-6 (N-47).
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TABLE 3-10 ALLOY 800H: DESIGN FATIGUE STRAIN RANGE, €7
*d* No. of ET Strain Range (in./in.) at Temperature
Cycles(a) 800'F 900°F lOOOOF 1lOO'F 1200OF 1300'F 1400'F
101 2 x 101 4 x 101
102 2 x 102 4 x 102
103 2 103 4 103
0.0533 0.0498 0.0468 0 0328 0 03 13 0.0298 0.0218 0.0208 0.0190
0.0139 0.0219 0.0119
0.00777 0.00699 0.00641 0.0103 0.00939 0.00861
0.00537 0.00489 0.00441 0.00427 0.00379 0.00351 0.00347 0.00314 0.00291
0.0378 0.0308 0.0263 0.0231 0.0243 0.0198 0.0168 0.0129 0.0163 0.0130 0.0113 0.00866
0.01 0.00823 0.00725 0.00722 0.00603 0.00535 0.00542 0.00463 0.00405
0.00392 0.00328 -0.00285 0.00312 0.00261 0.0023 0.00259 0.00213 0.00195
lo4 0.00277 0.00249 0.00233 0.0021 0.00174 0.00159 2 x lo4 0.00242 0.00219 0.00201 0.00182 0.00155 0.00142 4 x lo4 0.00215 0.00193 0.0018 0.00162 0.0014. 0.00127
0.00566
0.0033 1 0 00426
0 00254 0.00209 0.00176
0.00143 0.00125 0.00109
lo5 0.00187 0.00164 0.00151 0.00139 0.00122 0.00115 0.000959 2 x 105 0.00169 0.00149 0.00141 0.00128 0.00113 0.00105 0.000919 4 x lo5 0.00157 0.00139 0.00129 0.00121 0.00108 0.000987 0.000889
lo6 0.00139 0.00129 0.00119 0.00112 0.00103 0.000937 0.000869
(a)Cyclic strain rate: 1 x 10-3 in./in./s. (b)The values in this table are from Table T-1420-1C, Ref. 3-6.
3-20 DOE-HTGR-88106/Rev. 0 ,
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TABLE 3-11 U O Y 800H: NOMINAL COEFFICIENTS
OF THERMAL CONDUCTIVIT!l
Temperature ( O F ) k(a)
70 100 150 200 250
300 350 400 450 500
550 600 650 700 750
800 850 900 950 1000
1050 1100 1150 1200 1250
1300 1350 1400 1450 1500 1600 1800
6.7 6.8 7.1 7.4
8.0 8.3
7.7
8.6 8.8 9.1
9.3 9.6 9.8 10.1 10.3
10.6 10.8 11.1 11.3 11.6
11.9 12.1 12.4 12.7 13.0
13.2 13.2 13.8 14.2 14.5 15.1 17.3
is thermal con- ductivity, Btu/h f t ° F . Values for T I lSOO°F are per Table 1-4 of Ref. 3-7 values for T > 1500OF are from Ref. 3-2. F Q ~ T I 1500*F, k B 6.3 + 5.4 x 10-3 T.
3-21 DOE-HTGR-88106/Rev. 0
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TABLE 3-12 ALLOY 800H: COEFFICIENT OF TE€ERMAL EXPANSION
Coefficient of Thermal Expansion
(OF) Mea(*) (b) Instantaneous ( c )
(in./in.-*P x Temperature
70 100 200 300 400
500 600 700 750 800
850 900 950
1000 1050
1100 1150 1200 1250 1300
1350 1400 1450 1500 1550
7.75 7.79 7.90 8.30 8.80
8.90 9.00 9.10 9.15 9.20
9.25 9.30 9.35 9.40 9.45
9.50 9.55 9.60 9.65 9.70
9.77 9.84 9.91
10.00 10. 10
1600 10 . 20
7.75 8.05 8.50 8.80 9.00
9.12 9.20 9.32 9.40 9.50
9.65 9.80 9.97
10.16 10.37
10.60 10 80 11.00 11.20 11.37
11.54 11.68 11.80 11.92 12 . 00
12.10
(a)The mean coefficient of thermal expansion at temperature (T) is given by:
Length at T - length at 70°F (Length rt 70°F) (T - ?O°F)
(b)Per Table 1-14.9 of R e f . 3-6. (C)Per Table 1-14.8 of Ref. 3-6.
3-22 DOE-EITGR-88106/Rev. 0
9095961 0
i
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3-23 DOE-HTGR-88106/Rev. 0
90959610
W a c al
a IT w c 0
1 1 1 1 I 1 I i l l 1 1 I 1 1 0 0 7
t 0 0 F
c
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3-24 DOE-HTGR-88106/Rev. 0
909596/0
U I 0
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3-25 DOE-HTGR-88106/Rev. 0
909596 / O
From Fig. X-14.6, Ref. 3-6
TIME (HR)
Fig. 3-4 . Alloy 800H - stress-to-rupture strength given in N-47
3-26 DOE-HTGR-88106/Rev. 0
909596 / O
From Fig. I-14.4CI Ref. 3-6
Fig. 3-5. Alloy 800H - S,
3-27 DOE-HTGR-88106/Rev. 0
18
16
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12 v)
c v)
L
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8
6
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2
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From Fig. I-14.3C, Ref. 6
.
3-28 DOE-HTGR-88106/Rev. 0
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From Fig. 1-1420-1C, Ref. 3-6
10"
5
2
$10-2 z c
V I
W a 2 a 2 P a
10-3 v)
5
2
5 102 2 5 103 2 5 104 2 5 10' 10-4
10' NUMBER OF ALLOWABLE CYCLES, Nd
Fig. 3-7. Alloy 800H - design fatigue strain range, ET
3-29 DOE-HTGR-88106/Rev. 0 ,
OC-€
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w I w F
I 0) 0) F 0 QI --. F c . 0
.22
. 2 1
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.19
.18
17
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. 1 4
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Fig. 3-9. Alloy 800H - thermal diffusivity
From R e f . 3 - 4
TEMPERRTURE (DEG ' C )
200 4 00 6 0 0 8 0 0 1000 1200 1400 1600 TEMPERATURE tUEG F)
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4. LOW ALLOY STEEL, 2-114 CZ - 1 M o 4.1. PRODUCT FORMS AND APPLICABLE SPECIFICATIONS
This product is avai lable in many ‘forms and compositions as shown
i n Tables 4-1 and 4-2, respectively.
4 .2 . TIME-INDEPENDENT MECHANICAL PROPERTIES
The following mechanical propert ies of 2-1/4 Cr - 1 Mo s h a l l be used i n design: (Table 4 - 3 ) , design stress in t ens i ty (S,) (Table 4-3), and modulus of e l a s t i c i t y (E) (Table 4-4). The material 2-1/4 C r - 1 Mo Grade 22 Class 1 is not included i n t h e high-temperature Code C a s e N-201-1, but it is included i n Code C a s e N-47 (Ref. 4 - 3 ) .
ult imate s t rength (S,) (Table 4-3), y ie ld s t rength (Sy)
4 . 3 . TIME-DEPENDENT M E C W I C A L PROPERTIES
The only meta l l ic component to use 2-1/4 Cr - 1 Mo is t h e m e t a l -
l i c core support s t ruc tu re (per Table 1-1).
designed t o the ASME B&PV Subsection NG and Code C a s e N-201 (per Table 1-2).
This s t r u c t u r e is to be
Values of St, ht, and minimum SR for 2-1/4 C r - 1 Mo found i n Tables 4-5, 4-6, and 4-7 s h a l l be used in design.
4 . 4 . FATIGUE LIFE
The f a t igue l i f e of 2-114 C r - 1 Mo steel presented in Fig. 4-1 and Table 4-8 shall be used in design. .
4- 1 DOE-HTGR-88106/Rev. 0 .
90959610
4.5. THERMAL PROPERTIES
The values of thermal diffusivity (a), thermal conductivity (k) (Table 4-9, Figs. 4-2, 4 - 3 ) , and specific heat (C,) (Fig. 4-4) for 2-1/4 Cr - 1 Mo shall be w e d i n design.
4.6. ADDITIONAL MATERIAL PROPERTIES
This section contains the coefficient of thermal expansion ( a ) (Table 4-10) of 2-114 Cr - 1 Mo that shall be used in design. 4.7. EFFECT OF PRIMARY COOLANT CHEMISTRY AND TEMPERATURES
The effect of primary coolant chemistry and temperature is expected to be small on the mechanical properties of 2-114 Cr - 1 Mo at the design temperatures less than 850'F and can be neglected.
4.8. EFFECTS OF IRRADIATION
The irradiation effects on the mechanical properties of 2-114 Cr - 1 Mo can be neglected when irradiated at temperatures below 800'F at
total fluences of less than 1019 n/c&.
4.9. REFERENCES
4-1. ASME Boiler and Pressure Vessel Code, Section 111, Division 1, Appendices, 1986 Edition through the 1987 Addenda.
4-2. Wattier, J. B., VTGR Data Manual (Metals and Ceramics)," DOE-
HTGR-85048, Rev. 0, June 1985.
4-3. ASME Boiler and Pressure Vessel Code Case 1-47-23, "Class 1 Compo-
nents in Elevated Temperature Semice, Section 111, Division 1,"
February 20, 1986.
ASME Boiler and Pressure Vessel Code, Section 11, Material Speci- fications, Part A , "Ferrous," 1986 Edition through the 1987 Aidenda.
4-4.
4-2 DOE-HTGR-88106/Rev. 0
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TABLE 4-1 2-1/4 Cr - 1 Mo: MINIMUM SPECIFIED ROOM TEMPERATURE TENSILE
PROPERTIES, PRODUCT FORMS, AM) ASME SPECIFICATIONS
~
SA- 182 F22a Fittings and valves 60 (414) 30 (207)
SA-213 T-22 Seamless tubes 60 (414) 30 (207)
SA-335 P22 Seamless pipe 60 (414) 30 (207)
SA-336 F22a Forgings 60 (414) 30 (207)
SA-369 FP22 pipe Forge3 and bored 60 (414) 30 (207)
SA-387 22 Class 1 Plate 60 (414) 30 (207)
SA-387 22 Class 2 Plate 75 (518) 45 (311)
4-3 DOE-HTGR-88106/Rev. 0
Note: Except for Grade 22 Class 2, all the above materials are permis- sible materials at elevated temperatures (above 700'F) per Code Case N-47 (Ref. 4-3).
90959610
TABLE 4-2 2 - 1 / 4 C r - 1 Mo: CHEMICAL COMPOSITION
(Percent By Weight)
ASME Specification SA-387, Grade 22
C, maximum
Mn
P, maximum
S, maximum
Si, maximum
Cr
Mo
Fe
Values from Ref. 4-4.
4-4
0.15 0.25 - 0.66
0 035
0.035
0.50 1.88 - 2.62 0.85 - 1.15 - -
Balance
DOE-HTGR-88106/Rev. 0
90959610
TABLE 4-3 2-1/4 Cr - 1 Mo GRADE 22 CLASS 1: TENSILE ULTIMATE STRENGTH (Su), YIELD STRENGTH (Sy),
AND TIME-INDEPENDENT DESIGN STRESS INTENSITY (S,)
Strength (ks i ) Temperature (OF) S p S, (b) SJC)
100
200
300
400 500
600
700
750
800
850
900
950
1000
30.0
27.8
27.1
26.9
26.9
26.9
26.9
26.9 26.7
26.2
25.7
24.8
23.7
60.0
60.0
58.2
58.2
58.2
58.2
58.2
58.2 58.2
58.2
58.2
58.2
54.7
20.0
18.5
18.1
17.9
17.9
17.9
17.9
17.9 17.8
17.4
17.1
16.5
15.8
(a)Per Table 1-2.1, Ref. 4-1 and
(b)Per Table 1-3.1, Ref. 4-1.
(=)Per Table 1-1.1 of Ref. 4-1 for
Table 1-14.5 of Ref. 4-3.
T I 700OF; otherwise, S, based on two Sy/3.
4-5 DOE-HTGR-88106/Rev. 0 ,
909596 IO
TABLE 4-4 2-114 Cr - 1 Mo: MODULUS
OF ELASTICITY
70
200
300
400
500
600
700
800
30.6
29.8
29.4
28.8
28.3
27.7
27.1
26.3 ~ ~~ ~~
(a)Per Table 1-6.0, R e f . 4-1.
4-6 DOE-HTGR-881061Rev. 0
TABLE 4-5 2-1/4 Cr - 1 Mo: S, - ALLOWABLE STRESS INTENSITY VALUES
m i )
Temperature (OF) 1 h 10 h 30 h lo2 h 3 x 102 h 103 h 3 x 103 h 104 h 3 x lo4 h lo5 h 3 x lo5 h
700 750 800
850 900 950
c. 1000 1050 1100
1150 1200
I 4
-- 35.5 35.5 35.5 35.3 35.2 34.6 33.5 35.0 33.2 31.8 30.4
32.3 29.4 28.0 26.4 29.0 25.5 23.7 22.0 25.0 21.0 19.3 17.5
20.7 17.1 15.5 14.2 16.8 13.8 12.5 11.2 13.6 11.0 10.0 9.0
10.8 818 8.0 7.2 9.0 6.2 6.1 5.9
35.5 32.5 28.8
25.0 20.2 16.3
13.1 1012 8.2
6.3 511
35.5 35.5 31.3 29.7 26.8 25.0
23.2 21.0 18.5 16.5 14.8 13.2
11.9 10.4 9.3 7.9 7.2 6.2
35.5 28.4 23.0
18.3 14.4 11.3
8.7 6.7 5.0
-- --
35.5 26.6 20.5
16.3 12.5 9.7
7.5 5.7 4.1
-- --
35.5 35.5 25.0 23.3 18.0 16.1
14.0 12.3 10.9 9.6 8-4 7.3
6.3 5.2 4.7 4.0 3.3 2.7
Per Table I-14.4D of Ref. 4-3 (N-47) for 2-1/4 Cr - 1 Mo Grade 22 Class 1.
0
TABLE 4-6 2-114 Cr - 1 Mo: S,, - ALLOWABLE STRESS INTENSITY VALUES
M i )
Temperature (OF) 1 h 10 h 30 h 102 h 3 x 102 h 103 h 3 x 103 h 104 h 3 x 104 h lo5 h 3 x lo5 h
~
17.9 17.9 17.9
17.9 17.9 16.1 17*9 17.9 17.9
~~~
700 -- 17.9 17.9 17.9 750 17.9 17.9 17.9 17.9 800 17.9 17.9 17.9 17.9
17.9 17.9 17.9
17.9 17.9
17.9 17.9 17.9 17.9
17.9 17.9 17.9
14.0 10.9 8.4
12.3 9.6 7.3
17.6 17.6 17.6 17.6 17.2 17.2 17.2 17.2 16.7 16.7 16.7 16.7
17.6
16.3 17.2
17.6 17.2 14.8
17.6 16.5 13.2
17.6 14.4 11.3
16.3 12.5 9.7
850 900 950
8.7 6.7 5.0
t\ I m
1000 1050 1100
15.9 15.9 15.5 14.2 14.9 13.8 12.5 11.2 13.6 11.0 10.0 9.0
13.1 10.2 8.2
11.9 9.3 7.2
10.4 7.9 6.2
7.5 5.7 4.1
6.3 4.7 3.3
5.2 4.0 2.7
1150 1200
10.8 8.8 8.0 7.2 9.0 6.2 6.1 5.9
6.3 5.1
5.4 4.1
Per Table I-14.3D of Ref. 4-3 (N-47) for 2-1/4 Cr - 1 Mo Grade 22 Class 1. W 0 M
k ? m m
TABLE 4-7 2-1/4 Cr - 1 Mo: EXPECTED MINIMUM STRESS-TO-RUPTURE VALUES
( k s i )
Temperature (OF) 10 h 30 h 102 h 3 x 102 h 103 h 3 x lo3 h lo4 h 3 x lo4 h 105 h 3 x 105 h
54.0 37.5 27.0 21.0
16.4 12.6 9.4
7.0 5.0 -- --
49.0 34.1 24.0 18.5
14.1 11.0 7.9
5.8 4.1 -- --
700 750 800 850
900 950 1000
1050 1100 1150
1200
59.0 58.0 56.0 52.0
59.0 59.0 57.0 56.0 55.5 54.0 50.5 46.0
59.0 54.6 48.5 40.5
59.0 53.0 43.0 35.0
59.0 51.2 37.5 31.0
59.0 48.0 34.5 27.5
59.0 43.3 30.5 24.0
19.0 14.6 11.0
8.3 6.2 -- --
25.0 19.5 15.2
21.6
13.1 17.0
46.0 40.0 31.5
41.0 36.0 35.0 30.0 27.5 24.0
32.0 26.0 21.0
28.0 22.2 17.9
F. I W 26.0
21.0 17.0
22.5 19.0 18.0 15.1 14.1 11.8
16.5 13.0 9.8
14.0 10.8 8.0
12.0 9.1 --
10.0 7.5 --
11.1 9.2 7.6 6.2 13.5 -~ ~
~~~~
Values per Table I-14.6D of Ref. 4-3 (N-47) for 2-1/4 Cr - 1 Mo Grade 22 Class 1.
909596/0
TABLE 4-8 2-1/4 Cr - 1 Mo: DESIGN FATIGUE STRAIN RANGE, eT
€7 Strain Range (in./in.) at Temperature
No. of Cycles(a) 800'F 900' to llOO'F S700'F Nd *
101 0 056 0.040 0.039 4 x 101 0.023 0.0163 --
102 0.013 0.0097 0.014 2 x 102 0 0094 0.0070 -- 4 x 102 0.0070 0.0056 --
103 0.0052 0.0042 0.055 -- ~- 2 103 0.0044 0.0039 4 103 0 0040 0.0035 --
104 0.0032 0.00265 0.00253 2 104 0 0026 0 e 00215 -- 4 104 0.0023 0.00182 --
105 0 00195 0.00158 0.00133 2 x 105 0.00173 0.00142 -- 4 105 0 00 155 0.00130 - --
106 0.00137 0.00118 0.000833
(a)Cycle strain rate: 4 x 10-3 in./in./s. The values at T > 700'F are from Table T-1420-1D of Ref. 4-3 (N-47). For T S 700'F, values were computed from Table 1-9.0 of Ref. 4-1 using E = 30 x lo6 p s i (€7 = 2 Sa/E).
4-10 DOE-HTGR-88106/Rev. 0
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TABLE 4-9 2-1/4 Cr - 1 Mo: NOMINAL COEFFICIENTS OF THERMAL
CONDUCTIVITY (k) AND THERMAL DIFFUSIVITY (a)
70 100 150 200 250
300 350 400 450 500
550 600 650 7 00 750
800 850 900 950 1000
1050 1100 1150 1200 1250
1300 1350 1400 1450 1500
20.9 21.0 21.2 21.3 21.4
21.5 21.5 21.5 21.5 21.4
21.3 21.1 20.9 20.7 20.5
20.2 20.0 19.7 19.4 19.1
18.8 18.5 18.3 18.0 17.7
17.2 16.4
15.4 15.6
15.3
0 408 0 397 0.391 0.385 0.378
0.371 0.364 0.357 0 . 349 0.341
0.332 0.323 0.314 0.305 0.295
0.285 0.274 0.264 0.252 0.241
0 229 0.217 0.205 0.192 0.179
0.163 0.136
0.127 0.197
0 075
(a)k is the thermal conductivity, Btu/h-ft-OF; and a is the thermal diffusivity, ft2/h:
k (Btu/h-ft-OF) a -
Density (lb/ft3) x specific heat (Btu/lb-'F)
(b)From Table 1-4.0, Ref. 4-1.
4-11 DOE-HTGR-881061Rev. 0
909596/0
TABLE 4-10 2 - 1 / 4 Cr - 1 Mo: COEFFICIENT OF
THERMAL EXPANSION
Temperature CTE (a) (OF) (in./in./'F x
70
100
150
200
250
300 350 400
450
500 550
600 650
700
750
800
6.27
6.41
6.54
6.65
6.78 6.88
6.98 7.07 7.16
7.24
7.32 7.41
7.47
7.55
7.61
4- 12 DOE-HTGR-88106/Rev. 0
909596/0
0 N s 0 w
c
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(v I
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w 2 .. (v I hl
cr)
M rl k
N (u
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4-14 DOE-HTGR-88106/Rev. 0
I
M rl cr
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(33S/WW OS) A1IhISflAAIa I t f W t J 3 H l
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a a a
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4-15 DOE-HTGR-88106/Rev. 0
N I U
M -4 Ca
m Q m m m m m m m In m m m In
909596 10
61 m N d
n L
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m Q CD
4- 16 DOE-HTGR-88106/Rev. 0
.. 0 CJ Bl m I
4
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U U
M -4 Lr
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909596 /0
5. THREADED FASTENER MATERIAL SA-638 GRADE 660 (26 Ni - 15 Cr - 2 Ti) Devices which are used to assemble structural elements of core
support structures are referred to as threaded structural fasteners
in Subsection NG (where the core support structures are located within
a pressure-retaining boundary).
pressure-retaining boundaries, NB-3230 (Ref. 5-1) rules apply.
For connections joining parts of
This material is listed in Table 1-1.1 (Ref. 5-2) and shall be used
for applicable threaded structural fasteners in the MHTGR.
The data base is limited because of the maximum temperature con-
ditions allowed by the Code.
expanded to include mechanical properties up to 1200'F for some of the
MHTGR internal metallic operatinglaccident conditions use the values in this handbook.
Until such time that the data base is
5.1. APPLICABLE SPECIFICATIONS
The applicable specifications are given in Tables 5-1 and 5-2 is
from Ref. 5-3.
5.2. TIME-INDEPENDENT MECHANICAL PROPERTIES
The threaded-structural-fastener material SA-638 Grade 660 design
stress values to be used are presented in Table 5-3.
elasticity to be used is given in Table 5-4. The modulus of
5.3. TIME-DEPENDENT MECHANICAL PROPERTIES
[LATER)
5-1 DOE-HTGR-881061Rev. 0
909596 I O
5.4. FATIGUE LIFE
The fa t igue l i f e of SA-638 Grade 660 t o be used is presented i n Table 5-5.
5 . 5 . THERMAL PROPERTIES
The following thermal propert ies s h a l l be used : thermal conduc- t i v i t y (k) (Table 5 - 6 ) , thermal d i f fus iv i ty (Table 5-6), and coef f ic ien t of thermal expansion (Table 5-7).
5 . 6 . EFFECT OF PRIMARY COOLANT CHEMISTRY AND TEMPERATURE
The e f f e c t on the mechanical propert ies of SA-638 Grade 660 can be neglected because the re is not expected t o be an e f f e c t i n t h e MHTGR environment a t design temperatures less than 700'F.
5.7. EFFECT OF IRRADIATION
[LATER]
5.8. REFERENCES
5-1. ASME Boiler and Pressure Vessel Code, Section 111, Division 1, Subsection NB - Class 1 Components, 1986 Edition through t h e 1987 Addenda.
5-2. ASME Boiler and Pressure V e s s e l Code, Section 111, Division 1,
Appendices, 1986 Edition through the 1987 Addenda. 5-3. ASME Boiler and Pressure Vessel Code, Section 111, Material
Specif icat ions Par t A, "Ferrous," 1986 Edition through t h e 1987 Addenda.
5-2 DOE-HTGR-88106/Rev. 0
909596/0
TABLE 5-1 SA-638 GRADE 660: MECHANICAL PROPERTY REQUIREMENTS
Tensile strength, minimum
Psi 130,000
MPa 895
Yield strength (0.2% offset), minimum
Psi 85,000
MPa 585
Elongation in 4D minimum, X 15
Reduction of area, minimum, X 18
Brinell hardness 248 minimum
Stress-to-rupture at 1200OF (649OC) and 65,000 psi (460 MPa)
Minimum hours
Elongat ion , X
Note: Values in this table are from Ref. 5-2.
23
3
5-3 DOE-HTGR-881061Rev. 0
90959610
TABLE 5-2 SA-638 GRADE 660: CHEMICAL COMPOSITION(a)
(Percent By Weight)
Grade 660 (UNS K66286)(b)
Ladle Analysis Range Check Analysis Over (I) or Under
Carbon
Manganese
Silicon
Phosphorus
Sulfur
Chromium
Nickel
Molybdenum
Titanium
Copper
Aluminum
Vanadium
Boron
0.08 maximum
2.00 maximum 1.00 maximum
0.040 maximum
0.030 maximum 13.50 to 16.00
24.00 to 27.00 1.00 to 1.50
1.90 to 2.35 --
0.35 maximum
0.10 to 0.50 0.0010 to 0.010
0.01 over
0.04 over 0.05 over
0.005 over
0.005 over
0.20
0.20
0.05
0.05 --
0.05 over
0.03
0.004 under 0.001 over
(a)Values from this table are from Ref, 5-2.
(b)New designation established in accordance w i t h Recom- mended Practice E 527 and SAE 51086.
5-4 DOE-HTGR-88106/Rev. 0
TABLE 5-3 SA-638 GRADE 660: DESIGN STRESS INTENSITY
(k) FOR THREADED STRUCTURAL FASTENER MATERIAL (a)
Design Stress Intensity Temperature Values ~,(b)
(OF) (hi)
100
200 300
400 500 600 700
43.3
43.3 43.3
43.3 43.3 43.3 43.3
(a)Minimum specified strength ratio
(b)Per Table 1-1.1 (Ferritic S t e e l s )
Sy/Su = 851130.
R e f . 4 - 1 .
909596/0
5-5 DOE-HTGR-881061Rev. 0
TABLE 5-4 SA-638 GRADE 660: MODULUS OF ELASTICITY
[LATER]
5-6
90959610
I
DOE-HTGR-88106/Rev. 0
909596 /O
TABLE 5-5 SA-638 GRADE 660: DESIGN FATIGUE LIMITS
[LATER]
5-7 DOE-HTGR-88106/Rev. 0
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TABLE 5-6 NOMINAL COEFFICIENTS OF THERMAL CONDUCTIVITY
(k) AND THERMAL DIFFUSIVITY (a) FOR HIGH ALLOY STEEL GRADE 660
Temperature k a (OF) (Btulh-ft-OF) (ft2/h)
70 100 150 200 250
300 350 400 450 500
550 600 650 700 750
800 85 0 900 950 1000
1050 1100 1150 1200 1250
1300 1350 1400 1450 1500
7.5 7 .? 8.0 8.2 8.5
8.8 9.0 9.3 9.5 9.8
~
0.134 0.135 0.137 0.138 0.140
0.142 0.144 0.146
0.150 0.148
10.0 0.152 10.2 0.154 10.4 0.155 10.7 0.157 10.9 0.159
11.1 11.3 11.6 11.8 12.0
12.2 12.4 12.6 12.8 13.1
13.3 13.5 13.7 13.9 14.1
0.160 0.162 0.164 0.165 0.167
0.168 0.167 0.164 0.161 0.161
0.163 0.165 0.168 0.171 0.174
Note: The values in this table are from Table 1-4.0, Ref. 4-1. Values are applicable to both SA-638 Grade 660 and SA-453 Grade 660.
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TABLE 5-7 COEFFICIENT OF THERMAL EXPANSION FOR
HIGH ALLOY STEEL GRADE 660
~~
Temperature Instant (a) (OF) ( / OF3 Mean
70
100
150
200
250
300
350
400
45 0
500
550
600
650
7 00
75 0
800
8.22
8.31
8.46
8.61
8.75
8.89
9.02
9.14
9.26
9.37
9.48
9.58
9.68
9.77
9.85
9.93
-- 8.24
8.32
8.39
8.47
8.54
8.62
8.69
8.76
8.82
8.88
8.94
9.0
9.06
9.11
9.17
(a)Per Table 1-5.0, Ref. 4-1. This is applicable to both SA-638 Grade 660 and SA-453 Grade 660.
5-9 6
DOE-HTGR-881061Rev. 0
909596 / 0
6 . BOLTING MATERIAL SA-193 GRADE B7 (1 C r - 2 Mo)
This bol t ing material i s a low a l loy steel l i s t e d i n Table 1-1.3 (Ref. 6-1).
6.1. APPLICABLE SPECIFICATIONS
The chemical compositions and mechanical propert ies are given i n Tables 6-1 and 6-2 (Ref. 6-3).
6 . 2 . TIME-INDEPENDENT MECHANICAL PROPERTIES
The bol t ing material SA-193 Grade B7 design stress values presented i n Table 6-3 and Fig. 6-1 s h a l l be used i n design.
6.3. TIME-DEPENDENT MECHANICAL PROPERTIES
[LATER]
6 .4 . FATIGUE LIFE
6 . 5 . THERMAL PROPERTIES
This sec t ion includes t h e following thermal proper t ies t o be used: thermal conductivity (k) (Fig. 6-2), thermal d i f f u s i v i t y (Fig. 6-3), and coe f f i c i en t of thermal expansion (Table 6-4, Fig. 6 - 4 ) .
6-1 DOE-HTGR-88106/Rev; 0
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6.6. EFFECT OF PRIMARY COOLANT CHEMISTRY AND TEMPERATURE
The effect of primary coolant impurities can be neglected because
no effect on the mechanical properties of SA-193 Grade B7 is expected in
the MHTGR environment at design temperatures of less than 700'F.
6.7. EFFECT OF IRRADIATION
[LATER}
6.8. REFERENCES
6-1. ASME Boiler and Pressure Vessel Code, Section 111, Division 1,
Appendices, 1986 Edition through the 1987 Addenda.
6-2. "HTGR Design Data Manual (Metals and Ceramics)," DOE-HTGR-85048,
Rev. 0, June 1985.
6-3. ASKE Boiler and Pressure Vessel Code, Section 111, Material
Specifications Part A, "Ferrous," 1986 Edition through the 1987
Addenda.
6-2 DOE-HTGR-88106/Rev. 0
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TABLE 6-1 BOLTING MATERIAL SA-193 GRADE B7:
CHEMICAL COMF'OSITION (Percent By Weight)
Chromium-Molybdenum (AIS1 4140, 4142, 4145, 4140 H, 4142 H, and 4145 H)
~ ~~
Product Variation, Over or Under Range ( a
c 0.37 to 0.49(b) 0.02
Mn 0.65 to 1-10 0.04
P, maax -0.04
S, max 0.04
0.005 over
0.005 over ? -
si 0.15 to 0.35 0.02
Cr 0.75 to 1.20 0.05
Mo 0.15 to 0.25 0.02
(8)Per Table 10.1-2 of Ref. 6-2 which is from
(b)For bar sizes over 3.5 to 4 in. inclusive, the carbon content may be 0.05X maximum.
Ref. 6-3.
6-3 DOE-HTGR-88106/Rev. 0
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TABLE 6-2 BOLTING MATERIAL SA-193 GRADE B7: MINIMUM SPECIFIED ROOM
TEMPERATURE TENSILE PROPERTIES AND SPECIFICATIONS
(SUI ( S y ) Ultimate Strength Yield Strength Reduct ion
Diameter Minimum Minimum Elongation of Area (in. 1 (hi) (hi) ( X I ( X I
12.5 125
>2.5 I 4 115
>4 5 7 100
105 16 50
95 16 50
75 18 50
Per Table 10.1-1 of Ref. 6-2. The values of Su and S are given in Table 1-1.3 of Ref. 6-1. All values are given in t f . 6-3.
6-4 DOE-HTGR-88106/Rev0 0
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TABLE 6-3 BOLTING MATERIAL SA-193 GRADE B7: DESIGN STRESS INTENSITY (S,) VALUES
Minimum Specified Strengths Sy/Su (ksilksi)
l05/ 125 951115 75/100
Bolt Diameter (In.)
(2.5 >2.5 >4 (4 57
100
200
300
400
500
600
650
700
750
800
850
900
950
1000
Ref.
35.0
32.6
31.4
30.5
29.5
28.4
27.4
26.8
25.8
24.6 -- a-
a-
-- (a)
25.0
25.0
25.0
25.0
23.7
21.7
19.6
(b 1
31.6
29.5
28.4
27.4
26.7
25.7
25.0
24.3
23.4
22.3
-- (a)
23.0
23.0
23.0
23.0
21.8
20.0
18.0
(b)
25.0
23.3
22.4
21.8
21.0
20.3
19.7
19.2
18.5
17.5
-- (a)
18.7
18.7
18.7
18.7
18.7
17.4
15.7
(b)
(a) Section 111, Division 1, Appendix I, Table 1-1.3 (S, Values).
(b) Code Case N-253-4, Table C-l.l(b) (NC and ND Class 2 and Class 3) for information only.
6-5 DOE-HTGR-88106/Rev. 0
909596 10
TABLE 6-4 BOLTING MATERIAL SA-193 GRADE B7:
VARIOUS PROPERTY VALUES
a, Coefficients of Thermal Expansion k, Thermal a, Thermal
Conductivity Diffusivity Temperature Instant Mean (OF) (10'6/OF) ( 10"6/0F) (Btu/h-ft-OF) (ft2/h)
70 100 150 200 250
300 350 400 450 500
550 600 650 700 750
800 850 900 950
1000 1100 1200
5.60
6.20
6.88
5.83
6.55
7.18 7.47 7.73 7.79 8.18
8.38 8.55 8.70 8.83 8.94
9.02
5.73 5.91 6.09 6.27
6.43 6.59 6.74 6.89 7.06
7.18 7.28 7.40 7.51 7.61
7.71
24.2 24.3 24.4 24.4 24.3
24.2 24.0 23.9 23.6 23.4
23.1 22.7 22.3 22.0 21.6
21.2 20.9 20.5 20.1
19.8 19.1 18.2
0.471 0.464 0.452 0.439 0.426
0.414 0.402 0.390
0.367 0 378
0.355 0.344
0.320 0.307
0 333
0.295 0.283 0.271 0 259
0 248 0.225 0.199
Values are from Table 10.1-4 of Ref. 6-2. The values of a correspond to values for material group B in Table 1-5.0 of Ref. 6-1. values of k and a are from material group C in Table 1-4.0 of Ref. 6-1.
The
6-6 DOE-HTGR-88106/Rev. 0
.
4 0
38
36
3 4
32
3 0
H 20 m Y
o\ - 26
n
I W m m 2 4 w
CY t- 22 m
20
18
16 U 0 W I 3: c3
? 03 00
14
12
Per Fig. 10.1-5, R e f . 6-2
TEMPERATURE (DEG C)
n d a x
u) u) hJ N t- u)
U
\o
\o cn \o a\
0
10 e-.
m 0 100 2 0 0 300 500 6 0 0 700 8 0 0 9 0 0 0 r 0
4 00 %
TEMPERATURE (DEG F ) 4
0 %
Fig. 6-1. Bolting SA-193 Grade B7 - s t r e s s i n t e n s i t y (S,)
25
24
23
22
21
2 0
19
18
17
16
15
Per Fig. 10.1-8, Ref. 6-2
TEMPERATURE (DEG C)
- - 0 100 200 3 0 0 400 5 0 0 6B0 7 0 0 800 9 0 0 1000 1180 1200
' TEMPERATURE (DEG F )
Fig. 6-2. Bolting SA-193 Grade B 7 - thermal conductivity
W 0 W vc W Q\
0 \
90959610
w 2 .. h I
4
0 d
bo 4 tu
m m N - m m CI
L..
m m m c.
m m m
m m m
m m m
m CE ru
m m
m
x & 4 3
Q)
5
M G 4 & d 0
Pa
6-9 DOE-HTGR-88106/Rev. 0
90959610
el I
\o
VI
d - o\
I rl
0 r(
M rl cr
h
m m b
A
L
w 0
m m
m
4 d
w +
M c rl c, rl 0 c9 . .j I
\o
M rl tr
DOE-HTGR-88106/Rev. 0
90959610
7. BOLTING MATERIAL SA-453 GRADE 660 (26 N i - 15 C r - 2 T i )
This bol t ing material is a high a l loy steel l i s t e d i n Table 1-1.3 (Ref . 7-1).
7.1. APPLICABLE SPECIFICATIONS
The chemical composition and mechanical propert ies shal l be as
given i n Tables 7-1, 7-2, and 7-3 (Ref. 7-2).
7.2. TIME-INDEPENDENT MECHANICAL PROPERTIES
The bol t ing material SA-453 Grade 660 design stress values pre- sented i n Table 7-4 shall be used i n design.
7.3. TIME-DEPENDENT MECHANICAL PROPERTIES
[LATER]
7.4. FATIGUE LIFE
[LATER J
7.5. THERMAL PROPERTIES
The following thermal propert ies s h a l l be used i n design: thermal conductivity (k) (Table 7-S), thermal d i f f u s i v i t y (Table 7-S), and coef- f i c i e n t of thermal expansion (Table 7-6).
7- 1 DOE-HTGR-88106lRev. 0
90959610
7.6. EFFECT OF PRIMARY COOLANT CHEMISTRY AND TEMPERATURE
The effect of primary coolant chemistry can be neglected because no
effect on the mechanical properties of SA-453 Grade 660 is expected in
the MHTGR environment at the design temperatures less than 700'F.
7.7. EFFECT OF IRRADIATION
[LATER]
7.8. REFERENCES
7-1. ASME Boiler and Pressure Vessel Code, Section 111, Division 1,
Appendices, 1986 Edition through the 1987 Addenda.
7-2. ASME Boiler and Pressure Vessel Code, Section 111, Material
Specifications Part A, "Ferrous," 1986 Edition through the 1987
Addenda.
7-2 DOE-HTGR-88106/Rev. 0
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TABLE 7-1 BOLTING MATERIAL SA-453 GRADE 660: CHEMICAL COMPOSITION
(Percent By Weight and Heat Treatment)
Product Analysis Variation Content Over or Under
( X I ( X I
Carbon
Manganese
Silicon
Phosphorus
Sulfur
Chromium
Nickel
Molybdenum
T i t ani- Columbium
Aluminum
Vanadium
Boron
Copper
0.08 maximum
2.00 maximum
1.00 maximum
0.040 maximum
0.030 maximum 13.50 to 16.00
24.00 to 27.00 1.00 to 1.50
1.90 to 2-35 --
0.35 maximum 0.10 to 0.50
0.0010 to 0.010
--
0.01 over
0.04 over
0.05 over
0.005 over
0.005 over 0.20
0.20
0.05
0.05 --
0.05 over
0.03
0.0004 under 0.001 over
-- Per Ref. 7-2.
7-3 DOE-HTGR-881061Rev. 0
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TABLE 7-2 SA-453 GRADE 660: MECHANICAL PROPERTY REQUIREMENTS
(S,) Ultimate (S,)
Elongation i n Reduction of
Minimmum Minimum Strength Strength Diameter Minimum Minimum Area
Brinell Class k s i MPa k s i MPa (2) (XI Hardness No.
A and B 130 895 85 585 15 * 18 248 t o 341
Values of Su and Sy are from Table 1-1.3 of Ref. 7-1. given i n Ref. 7-2.
A l l values
7-4 DOE-HTGR-88106/Rev. 0
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TABLE 7-3 SA-453 GRADE 660 : STRESS-RUPTURE REQUIkEMENTS
Time to Rupture Elongation Test Stress
Minimum Minimum Temperature Minimum
Class ( O C ) (OF) k s i MPa (h) (XI
A and B 650 1200 56 385 100 5
Values from Ref. 7-2.
7 -5 DOE-HTGR-88106/Rev. 0
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TABLE 7-4 BOLTING MATERIAL SA-453 GRADE 660: DESIGN STRESS INTENSITY VALUES (S,)
Temperature Allowable S, Values (OF) (hi)
100
200
3 00
400
500
600
700
800
850
900
950
1000
Ref.
28.3
27.6
27.3
27.2
27.1
28.0
26.8
26.6
-- (a)
-- 27.0
27.0
28.0
26.8
26.7
(b)
(a)Per Table 1-1.3 (Bolting),
(b)Code Case N-253-4,
Ref. 7-1.
Table D-2.l(b) - Allowable stress values for Class 2 bolting on ves- sels using -3200 rules. The high temperature code cases N-201-1 (NG-Core Support Structure) and N-47-23 (NB-Class 1) do not include SA-453 Grade 660 in their bolting materials. (For information only.)
7-6 DOE-HTGR-88106/Rev. 0
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TABLE 7-5 NOMINAL COEFFICIENTS OF TEIERMAL CONDUCTIVITY (k) AND THERMAL DIFFUSIVITY (a) FOR HIGH ALLOY STEEL GRADE 660
Temperature k a (OF) (Btulh-ft-OF) ( ft21h)
70 100 150 200 25 0
300 350 400 45 0 500
550 600 650 700 750
800 850 900 950 1000
1050 1100 1150 1200 1250
1300 1350 1400 1450 1500
7.5 7.7 8.0 8.2 8.5
8.8 9.0 9.3 9.5 9.8
10.0 10.2 10.4 10.7 10.9
11.1 11.3 11.6 11.8 12.0
12.2 12.4 12.6 12.8 13.1
13.3 13.5 13.7 13.9 14.1
0.134
0.137
0.140
0.135
0.138
0.142 0.144 0.146 0.148 0.150
0.152 0.154 0.155 0.157 0.159
0.160 0.162 0.164 0.165 0.167
0.168 0.167 0.164 0.161 0.161
0.163 0.165 0.168 0.171 0.174
Note: The values in this table are from Table 1-4.0, Ref. 7-1. Values are applicable to both SA-638 Grade 660 and SA-453 Grade 660.
7-7 DOE-HTGR-88106/Rev. 0
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TABLE 7-6 COEFFICIENT OF THERMAL EXPANSION FOR
HIGH ALLOY STEEL GRADE 660
Temperature Instant (a) (OF) ( 10'6/0F) Mean
70
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
8.22
8.31
8.46
8.61
8.75
8.89
9.02
9.14
9.26
9.37
9.48
9.58
9.68
9.77
9.85
9.93
-- 8.24
8.32
8.39
8.47
8.54
8.62
8.69
8.76
8.82
8.88
8.94
9.0
9.06
9.11
9.17
(8)Per Table 1-5.0, Ref. 7-1. This is applicable to both SA-638 Grade 660 and SA-453 Grade 660.
7 -8 DOE-HTGR-88106/Rev. 0